package com.test.aqs;

import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicReference;


class User{
    String name;
    int age;

    public User(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "User{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

public class AtomicReferenceDemo {
    public static void main(String[] args) {

        User z3 = new User("z3",25);
        User l4 = new User("l4",30);

        AtomicReference<User> atomicReference = new AtomicReference<>();
        atomicReference.set(z3);

        System.out.println(atomicReference.compareAndSet(z3, l4) + " \t "  +atomicReference.get().toString()) ;
        System.out.println(atomicReference.compareAndSet(z3, l4) + " \t "  +atomicReference.get().toString()) ;
    }
}
